include/linux/leds-lp5521.h

   1 /*
   2  * LP5521 LED chip driver.
   3  *
   4  * Copyright (C) 2010 Nokia Corporation
   5  *
   6  * Contact: Samu Onkalo <samu.p.onkalo@nokia.com>
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * version 2 as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  20  * 02110-1301 USA
  21  */
  22
  23 #ifndef __LINUX_LP5521_H
  24 #define __LINUX_LP5521_H
  25
  26 /* See Documentation/leds/leds-lp5521.txt */
  27
  28 struct lp5521_led_config {
  29         u8              chan_nr;
  30         u8              led_current; /* mA x10, 0 if led is not connected */
  31         u8              max_current;
  32 };
  33
  34 #define LP5521_CLOCK_AUTO       0
  35 #define LP5521_CLOCK_INT        1
  36 #define LP5521_CLOCK_EXT        2
  37
  38 struct lp5521_platform_data {
  39         struct lp5521_led_config *led_config;
  40         u8      num_channels;
  41         u8      clock_mode;
  42         int     (*setup_resources)(void);
  43         void    (*release_resources)(void);
  44         void    (*enable)(bool state);
  45 };
  46
  47 #endif /* __LINUX_LP5521_H */